How to Increase or Reduce the Font in Xiaomi Messages: 5 Proven Ways

Xiaomi’s MIUI-based smartphones offer flexible text settings, but not everyone knows how to change the font size in messages. The problem is especially relevant for owners of devices with large screens (for example, Redmi Note 12 Pro+ or Xiaomi 14 Ultra), where the standard font may seem too small, or for users with visual disabilities. In this article, we will analyze all available methods, from system settings to hidden MIUI functions, which work even on budget models like the Poco M6 Pro.

It’s important to understand that changing the font in messages depends on the type of application: standard SMS (Messages app), messengers (Telegram, WhatsApp) and system notifications are configured differently. We’ll look at each case separately, including solutions for devices with a MIUI 14/15 shell, where some of the functions are moved to the “Special features” section. If you use custom firmware (for example, Xiaomi.EU), some menu items may differ – we’ll mention this too.

1. Change of font size in the standard application "Messages"

The Messages system application (an envelope icon) uses the font settings set in the basic MIUI settings to change them:

1. Open “Settings” → select the Screen section.
2. Go to the submenu Text size and display (on some models – Text and scale).
3. Pull the text size to the right (increase) or left (reduce) and preview the changes will be displayed immediately.
4. Click Ready or Apply to save the settings.

⚠️ Attention: On devices with MIUI 14+ (for example, Xiaomi 13T or Redmi K60) This way changes the font in all system applications, including Messages, Contacts and Calendar. SMS, move on to the next section.

Update MIUI to the latest version (Settings → About Phone → System Update)

Make sure there are no native font settings in the Messages app (open the app menu)

Check if third-party themes are installed from the Mi Theme Store (they may reset settings)

-->

For Poco X5 Pros and later, you can add an option called "Bold Text" in the same menu, which will make the text in your messages clearer, but can reduce the number of characters on the screen. If you change the text in your SMS, you don't see it correctly (for example, it's cropped), try:

• 🔄 Reboot the device – sometimes the settings are applied only after the reboot.
• 📱 Clear the cache of the Messages application (Settings) → Annexes → Application management → Communications → Clear the cache).
• 🎨 Reset the theme settings to standard (Settings) → Theme → My subjects. → Standard).

2. font setting in messengers (WhatsApp, Telegram, Viber)

Popular messengers use their own text display mechanisms, which do not depend on the system settings of MIUI. Let’s consider each of them separately:

WhatsApp

WhatsApp has a font size tied to Android system settings, but there is a workaround:

1. Open WhatsApp Settings → Chats.
2. Select the font size (available 3 options: Small, Medium, Large).
3. For additional scaling, use the zoom gesture: mixing / diluting two fingers in the chat.

Telegram

Telegram offers more flexible settings:

1. Go to Settings. → Appearance.
2. Enable the option to enlarge text and select the scale from 100% to 150%.
3. To change the font by default, install a third-party theme with large text (for example, Telegram Large Font).

WhatsApp|Telegram|Viber|Text|Other-->

⚠️ Note: Viber and Facebook Messenger don’t have built-in font size settings, only changing the system scale (see section 1) or using the screen zoom feature (Settings) will help. → Special facilities → Screen size).

3. Use of special opportunities to increase the text

If standard settings don’t work well, MIUI has hidden features for visually impaired users that can increase the font to 200 percent of the standard size, but can affect the display of some interface elements.

To activate this mode:

1. Go to Settings → Special Opportunities → Vision.
2. Select the font size (not to be confused with the item of the same name in the "Ekran"!).
3. Set the slider to the maximum value or select a preset profile (such as Very Large).
4. Activate the Fat Text option if available.

💡

On devices with MIUI 15 (for example, Xiaomi 14) in this menu appeared the option Contrast text – it makes the font clearer against a dark background, which is useful for reading messages at night.

⚠️ Note: Enlarging the font through "Special Features" may result in:

• 📱 Cutting text in some apps (for example, Instagram or banking programs).
• 🔄 Failures in the display of icons on the main screen.
• ⚙️ Incorrect operation of weather widgets or calendar.

If after applying the settings, the interface has become uncomfortable, return the slider to the original position or reset:

Settings → Special features → Vision → Reset font size

4. Change font through the developer (for power users)

For advanced users willing to work with the developer’s settings, there is a way to change the screen density (DPI), which indirectly affects the font size in all applications, including messages. This method is recommended only for devices with a screen resolution of FHD+ and higher (for example, Xiaomi 12 Pro or Redmi K50 Gaming).

To activate the developer mode and change the DPI:

1. Go to Settings → About Phone and click on the MIUI version 7 times until the notification “You became a developer” appears.
2. Go back to the main settings menu and open a new section for developers.
3. Find the minimum width (dp) (or the smallest width).
4. Reduce the value from standard 360-411 to 320-350 (the smaller the number, the larger the interface elements).
5. Reset the device.

📌 Important: Change DPI It affects all applications, not just messages. After experiments, return the original value if the interface becomes uncomfortable. AMOLED-screens (for example, Xiaomi 13 Lite) are too low DPI This can lead to increased power consumption due to pixel recalculation.

5. Third-party applications for fine-tuning the font

If the built-in MIUI is not good, you can use third-party utilities, and we tested several solutions on Xiaomi devices and selected the most reliable ones:

• 📱 Big Font (Play Market) – allows you to change the font separately for each application, including SMS It's a messaging app. ADB.
• 🔧 Font Size Changer – works without root, but you need to activate it through ADB-Command: adb shell pm grant com.jarsilio.android.fontsize fullScreenIntent
• 🎨 Mi Fonts (official app from Xiaomi) – offers alternative fonts with enlarged characters (e.g. Mi Sans Bold).

⚠️ Note: When using third-party applications:

1. Back up your data before changing system fonts (Settings → Additional → Backup). 2. Do not install fonts from unverified sources – this can lead to a loss of warranty (on devices with a locked bootloader). 3. On models with MIUI Global (such as Redmi Note 12 4G), some font change applications may not work due to manufacturer restrictions.

💡

The safest way is to use the official Mi Fonts app, which requires no root rights and has been tested for compatibility with the latest versions of MIUI.

6. Solving problems after changing font

Sometimes, when text sizes change, messages get messed up, and here are the typical situations and ways to fix them:

If after all the manipulations the font in the messages is still uncomfortable, check:

• 🔍 Updates MIUI — Newer versions often fix display errors (Settings) → The phone. → Updating the system).
• 📲 Keyboard settings – some keyboards (such as Gboard) have their own text size.
• 🔄 System Launcher Cache – Cleaning can return standard display (Settings) → Annexes → Launcher → Clear the cache).

FAQ: Frequent questions about font customization in Xiaomi